[et_pb_section fb_built=”1″ specialty=”on” padding_top_1=”80px” padding_top_bottom_link_1=”false” padding_left_right_link_1=”false” admin_label=”Intro” _builder_version=”4.22.2″ custom_padding=”3px|||||” global_colors_info=”{}”][et_pb_column type=”2_3″ specialty_columns=”2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_row_inner _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column_inner saved_specialty_column_type=”2_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_post_title meta=”off” featured_image=”off” _builder_version=”4.16″ title_font=”Montserrat|600|||||||” title_text_color=”#000000″ title_font_size=”64px” title_line_height=”1.2em” title_font_size_tablet=”50px” title_font_size_phone=”24px” title_font_size_last_edited=”on|desktop” locked=”off” global_colors_info=”{}”][\/et_pb_post_title][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” background_color=”#00C4CC” text_orientation=”center” width=”100%” max_width=”600px” module_alignment=”center” global_colors_info=”{}”]<\/p>\n
[To Download a FREE PDF of this guide scroll to the end]<\/em><\/p>\n [\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/00-RB00080X.jpg” alt=”00 RB00080X” title_text=”00 RB00080X” admin_label=”Image 00″ _builder_version=”4.27.4″ custom_margin=”|-9vw|||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Quote Section” _builder_version=”4.21.0″ use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”#ffffff 70%|#00c4cc 70%” background_color_gradient_start=”#ffffff” background_color_gradient_start_position=”70%” background_color_gradient_end=”#00c4cc” background_color_gradient_end_position=”0%” custom_padding=”50px||3px||false|false” background_last_edited=”on|phone” background_color_gradient_stops_phone=”#ffffff 95%|#00c4cc 95%” background_color_gradient_start_position_phone=”95%” locked=”off” global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ max_width=”900px” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2021\/03\/magazine-18.png” _builder_version=”4.16″ custom_margin=”||50px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.4″ text_font=”Cardo||||||||” text_text_color=”#2a2a2a” text_font_size=”42px” text_line_height=”1.4em” text_orientation=”right” text_font_size_tablet=”36px” text_font_size_phone=”24px” text_font_size_last_edited=”on|desktop” global_colors_info=”{}”]<\/p>\n The beauty of thermography is that it is quick and non-destructive, so perfect to use in people\u2019s homes as a first sweep across the external envelope.<\/span><\/p>\n [\/et_pb_text][et_pb_divider divider_weight=”6px” _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_divider][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” collapsed=”off” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Infrared Thermography” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n Infrared Thermographic photography is a way to visualise the heat energy on any given surface. It is essentially a heat map camera that displays temperatures as colours so you can visualise relative temperatures. If you are concerned with heat loss in buildings or locating draughts, then thermography is a helpful analysis tool.<\/span><\/p>\n The camera does not ‘see through’ things, but it can detect what is happening behind a surface due to the way that energy is flowing to the face of that surface. For example, a thermographic image can pick out the vertical studs in a wall or rafters in a roof construction due to the effect that these members are having on the internal surface temperature.<\/span><\/p>\n Technology has made these cameras (or camera attachments to smartphones) an affordable addition to the utility belt of a building surveyor or retrofit consultant. This article will explain how they can be used and illustrate some typical examples of heat loss detected using this method, alongside solutions straight out of the Detail Library catalogue.<\/span><\/p>\n [\/et_pb_text][et_pb_text admin_label=”Back to School” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”50px||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n If you recall your electro-magnetic spectrum from school science, we can only see a fraction of the energy waves which we call the visible spectrum. Switching to Latin class, Infrared (or \u2018further-on from red\u2019) is the wavelength just beyond the visible spectrum at the red side of the chart. These have longer wavelengths than we can observe. Infrared (IR) is energy emitted by heated objects and has a wavelength of 800 to 1000nm. IR has a number of useful applications, from astronomy to medical applications (remember those COVID point \u2018n shoot thermometers?), from your TV remote to meteorology.<\/span><\/p>\n Passing through the visible (red, yellow, orange, cyan, blue) at the other end is ultraviolet (\u2018beyond violet\u2019) that describes the shorter wavelengths. So, IR and UV bookend the visible spectrum.\u00a0<\/span><\/p>\n Remember: heat is just energy. All that energy wants to do is move from something hot to something cold.<\/i><\/b><\/p>\n Heat will move from a warm internal room to the cooler outdoors, or from your feet to the carpet. Like water finding the hole in a bucket, heat will find a poorly insulated window or a gap in the insulation layer and inexorably flow towards it. This is why in buildings, thermal continuity and airtightness are the two frontiers where we fight discomfort.<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/01-Open-University-electromagnetic-spectrum.jpg” alt=”01 Open University electromagnetic spectrum” title_text=”01 Open University electromagnetic spectrum” align=”center” admin_label=”Image 01″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#00C4CC” divider_weight=”5px” _builder_version=”4.27.4″ _module_preset=”default” width=”70%” module_alignment=”right” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_divider][et_pb_text admin_label=”Thermal Bridges” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n Typically, in buildings the heat loss is exaggerated at any junctions, edges and openings. These are described as thermal bridges AKA localised areas where the heat is allowed to flow more easily from warm to cold. IR cameras are a great tool for building professionals to diagnose cold bridges in existing buildings and find solutions for homeowners or building managers.<\/span><\/p>\n Thermal bridges can be repeating, like a series of repetitive roof rafters, or isolated examples like a single waste pipe passing through the external wall. Other examples include window reveals or fixings that penetrate the insulation layer, like structural balcony supports. Even metal cavity ties contribute to transferring energy across the wall construction.<\/span><\/p>\n There are three ways that heat is transferred:<\/span><\/p>\n Conduction<\/b> \u2013 through a solid surface like a solid stone door threshold, a stainless steel glazing spacer bar or a roof rafter that passes from inside to outside.<\/span><\/p>\n Convection<\/b> \u2013 via a liquid or gas, so typically this describes heat loss from buildings through ventilation (controlled and uncontrolled gaps and cracks).<\/span><\/p>\n Radiation<\/b> \u2013 via electro-magnetic waves. In buildings this relates to solar gain and the unhelpful ways that poor fabric can affect internal comfort and cause overheating.<\/span><\/p>\n For internal comfort and heat retention, we are generally concerned with the first two, Conduction and Convection. These capture the poor ways that buildings have been constructed (allowing heat to transfer through uninsulated materials), or air escaping through unintended gaps and openings.\u00a0<\/span><\/p>\n [\/et_pb_text][et_pb_text admin_label=”IR Thermography for Diagnostics” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n Thermography is one of the tools for retrofit professionals to analyse an existing building’s performance. Even if the construction of the walls, floors and roofs are known, it gives added insight into the ways these elements meet and the points of weakness. IR allows us to learn from the mistakes of the past and find better solutions.<\/span><\/p>\n If we suspect a weakness, without the benefit of x-ray specs, we have two ways of investigating a wall, floor or roof. An intrusive survey will drill a hole, remove a patch of plasterboard or lift a floorboard to check out what lies beneath. This is not always possible or desirable and leaves a trace.\u00a0<\/span><\/p>\n The beauty of thermography is that it is quick and non-destructive, so perfect to use in people\u2019s homes as a first sweep across the external envelope. Sure, intrusive works may need to follow to find the correct specification for a solution, but it may prevent that hole being drilled in the first place.<\/span><\/p>\n It is important to note that the use of IR thermography is seasonal. The rule of thumb is a 10degC difference between internal and external conditions to get helpful data. This means that the thermal imaging season runs from around Oct to March. I\u2019ve found in practice that the start or end of the season, internal imaging is still useful for spotting cold bridges, but the external wall analysis of larger surfaces really needs those cold external temperatures and the heating on inside. <\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/02-RB00095X.jpg” alt=”02 RB00095X” title_text=”02 RB00095X” align=”center” admin_label=”Image 02″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Image Caption” _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” global_colors_info=”{}”]<\/p>\n Example of cold draft at sliding door closure.<\/em> <\/span><\/p>\n [\/et_pb_text][et_pb_divider color=”#00C4CC” divider_weight=”5px” _builder_version=”4.27.4″ _module_preset=”default” width=”70%” module_alignment=”left” global_colors_info=”{}”][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”The Cameras” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n There are three types of cameras. The first is a clip-on attachment to a smartphone (c. \u00a3200), making it the most transportable type of device. The second is a \u2018non-professional\u2019 handheld device (\u00a3200-400) that tends to have a slightly larger screen and better resolution over the smartphone version. The third version is a professional camera, costing c.\u00a31000 with higher resolution, more features and settings.<\/span><\/p>\n Most of these also come with supporting software for analysis. This allows temperature points to be added to an image afterwards to understand relative surface temperatures. Still images and videos can be taken, so consider how you want to use the outputs and illustrate these to your intended audience. Find the right camera that suits your budget and the outcomes you are looking for.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/03-hikmicro_hikmicro-eco-aa.webp” alt=”03 hikmicro_hikmicro-eco-aa” title_text=”03 hikmicro_hikmicro-eco-aa” align=”center” admin_label=”Image 03″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”50px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#00C4CC” divider_weight=”5px” _builder_version=”4.27.4″ _module_preset=”default” width=”70%” module_alignment=”right” global_colors_info=”{}”][\/et_pb_divider][et_pb_text admin_label=”Understanding the Images” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”]<\/p>\n <\/p>\n Hot things like people or warm surfaces appear as a bright white\/yellow and cold things appear dark as blue\/black. Camera sensitivity can provide read outs for temperatures ranges which are particularly useful for avoiding low surface temperatures that give rise to condensation and mould. More complex cameras also allow the colour and ranges to be adjusted for specific analysis.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/04-230831142433.jpg” alt=”04 230831142433″ title_text=”04 230831142433″ align=”center” admin_label=”Image 04″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Text” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n Coffee at 46.9degC \u2013 <\/span>just the way I like it.<\/span><\/i><\/p>\n One of the main benefits of thermographic imaging for homeowners is the way it can form part of an interactive home assessment. For people who have lived in their homes for many years, they know exactly which are the colder rooms, which walls get an annual spot of damp or the draughtiest windows. The ability to show that to them is really powerful, and may mean the difference between knowing there a problem and actively seeking a solution.\u00a0 Therefore, it can be a way of confirming what they already knew, or suspected.<\/span><\/p>\n I\u2019ve found people really enjoying seeing their home in a new light, and it forms a very interactive part of any home visit.<\/i><\/b><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Text” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n IR cameras can help you be \u2018house detective\u2019 spotting the shadows of old windows or walls, former questionable DIY attempts or poor workmanship. More than once I have scanned across a newly insulated sloped roof only to find at least one zone between rafters is completely unfilled. The homeowner now has the evidence to get the contractor back to rectify their mistake.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/05-250127152152.jpg” alt=”05 250127152152″ title_text=”05 250127152152″ align=”center” admin_label=”Image 05″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Text” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n Mind the gap \u2013 <\/span>a zone between two rafters missing insulation.<\/span><\/i><\/p>\n Even a highly performing component like a triple glazed window can leak heat and air around the edges if poorly installed. The designer has the ability to influence the component specification and the workmanship clauses, matched to a comprehensive set of details illustrating both the thermal continuity and airtightness layers.\u00a0<\/span><\/p>\n Like any device, sensor or detector, an IR camera is a tool that requires some knowledge to use and interpret. It is one thing to see a thermal bridge but another to understand why it occurs and how to fix it. Spotting the lack of cavity closers before windows are removed means it won\u2019t come as a shock or a late extra for the client to pay for.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Text” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n Using a number of examples from my time as a retrofit professional, let\u2019s explore some common scenarios and compare to the best practice examples found within the Detail Library. <\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”1. Poorly insulated cavity wall construction” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, an uninsulated cavity wall with higher heat transfer occurring through the mortar joints and along the head of the wall where it meets an intermediate floor.<\/span><\/p>\n On the right, M-W1 illustrates a well-insulated cavity wall with insulation wrapping the entire inner leaf inside a warm jacket. Here, an additional layer of EWI takes the wall\u2019s performance from good to excellent.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/06-250312113349.jpg” alt=”06 250312113349″ title_text=”06 250312113349″ align=”center” admin_label=”Image 06″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/07-MW1.jpg” alt=”07 MW1″ title_text=”07 MW1″ align=”center” admin_label=”Image 07″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”2. Heat loss around windows lacking a cavity closer” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, blue heat loss edges around not just the glazing edges but also the window, with the worst cold bridge up the jambs, likely due to no cavity closers and the forward placement of the window in the cavity wall.\u00a0<\/span><\/p>\n On the right,\u00a0 DL-154 shows even with a forward placement, cavity closers help achieve a better installation and airtightness.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”60px||||false|false” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/08-231114104713.jpg” alt=”08 231114104713″ title_text=”08 231114104713″ align=”center” admin_label=”Image 08″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/09-DL154.jpg” alt=”09 DL154″ title_text=”09 DL154″ align=”center” admin_label=”Image 09″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”3. A solid door threshold spanning inside to outside” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, a solid threshold conducts heat from inside to outside. Also note the thin door panels and heat loss around the door edges and through the letterbox with a brush flap.\u00a0<\/span><\/p>\n On the right,\u00a0 DL-316A shows the importance of a thermally broken threshold, here utilising a block of insulation directly under the door.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/10-241105114223.jpg” alt=”10 241105114223″ title_text=”10 241105114223″ align=”center” admin_label=”Image 10″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/11-DL316A.jpg” alt=”11 DL316A” title_text=”11 DL316A” align=”center” admin_label=”Image 11″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”4. Recessed lights in a flat ceiling” _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”]<\/p>\n On the left, insulation is often pulled away from light fitting due to increased fire risk, leaving large cold bridges.\u00a0\u00a0<\/span><\/p>\n On the right,\u00a0 EI15 shows how this can be managed with a proprietary loft lid so the insulation layer can be continuous.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/12-250106112713.jpg” alt=”10 241105114223″ title_text=”12 250106112713″ align=”center” admin_label=”Image 12″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/DL37-1000px-crop.jpg” alt=”DL37 1000px crop” title_text=”DL37 1000px crop” align=”center” admin_label=”Image 13″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”5. Uninsulated flat roof” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, insulation is missing or has failed within this flat roof extension, requiring further intrusive investigation.\u00a0<\/span><\/p>\n On the right,\u00a0 DL-129 shows a cold roof retrofit with insulation between the joists, across the inside and crucially, a ventilation path on the outer face below the waterproofing layer.<\/span><\/p>\n \u200b<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/14-250106112429.jpg” alt=”10 241105114223″ title_text=”14 250106112429″ align=”center” admin_label=”Image 14″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/15-DL129.jpg” alt=”15 DL129″ title_text=”15 DL129″ align=”center” admin_label=”Image 15″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”6. Uninsulated dropped eaves” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, insulation is missing at the dropped eaves or \u2018skeiling\u2019 which is a common area where condensation and mould can occur.<\/span><\/p>\n On the right,\u00a0 DLR-2 shows a well-insulated dropped eaves forming a continuous thermal line with IWI on the walls and traditional loft insulation across the ceiling.<\/span><\/p>\n \u200b<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/16-241210135048.jpg” alt=”10 241105114223″ title_text=”16 241210135048″ align=”center” admin_label=”Image 16″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/17-DLR2.jpg” alt=”17 DLR2″ title_text=”17 DLR2″ align=”center” admin_label=”Image 17″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}” sticky_enabled=”0″][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”7. Draughts through a suspended timber floor” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n O<\/span>n the left, cold air draughts can be visualised as blue lines between the floorboards.<\/span><\/p>\n On the right,\u00a0 DLR-11 shows the best practice approach to insulating a suspended timber floor for both improved thermal performance and draught proofing, tightly packing soft insulation materials between the joists, protected by a VCL.<\/span><\/p>\n \u200b<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/18-241118142312.jpg” alt=”10 241105114223″ title_text=”18 241118142312″ align=”center” admin_label=”Image 18″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/19-DLR11.jpg” alt=”19 DLR11″ title_text=”19 DLR11″ align=”center” admin_label=”Image 19″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”30px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”8. Heat through solid ground floors” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, an uninsulated solid floor is conducting heat downwards to the external wall edge, raised up above ground level, bypassing the cavity insulation.<\/span><\/p>\n On the right,\u00a0 DL-322A shows an insulated slab edge extending below ground level, suitable for both solid and suspended floors to protect this vulnerable edge from creating heat loss.<\/span><\/p>\n \u200b<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/20-230902072642.jpg” alt=”10 241105114223″ title_text=”20 230902072642″ align=”center” admin_label=”Image 20″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/21-DL322A.jpg” alt=”21 DL322A” title_text=”21 DL322A” align=”center” admin_label=”Image 21″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”9. Air leakage around sash windows” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, cold air laps around the edge of a poorly installed window in a historic wall.<\/span><\/p>\n On the right,\u00a0 DL-28A shows a sash window installation, properly installed without gaps, here also incorporating a blind box at the head.<\/span><\/p>\n \u200b<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/22-250106111352.jpg” alt=”22 250106111352″ title_text=”22 250106111352″ align=”center” admin_label=”Image 22″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/23-DL28A.jpg” alt=”DL28A sash window concealed blind detail thumb” title_text=”23 DL28A” align=”center” admin_label=”Image 23″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”10. Bay window lid” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, in mid-century homes, bay windows often have poorly insulated roofs, causing discomfort in front rooms and master bedrooms.<\/span><\/p>\n On the right,\u00a0 DLR-18 shows how these ceiling voids can be well insulated alongside IWI to the existing solid external walls.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/24-250106111002.jpg” alt=”24 250106111002″ title_text=”24 250106111002″ align=”center” admin_label=”Image 24″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/25-DLR18.jpg” alt=”25 DLR18″ title_text=”25 DLR18″ align=”center” admin_label=”Image 25″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”11. Loft conversion alcove” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n O<\/span>n the left, a storage alcove in a converted roof has no insulation thickness into the cold ventilated eaves, leaving a huge gap in the thermal envelope.<\/span><\/p>\n On the right,\u00a0 LC-04 shows how an upstand wall between a heated space and the cold eaves must be insulated along with any connecting hatches.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/26-241203110645.jpg” alt=”24 250106111002″ title_text=”26 241203110645″ align=”center” admin_label=”Image 26″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”30px||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/27-LC04.jpg” alt=”DLR18 IWI bay window roof junction” title_text=”27 LC04″ align=”center” admin_label=”Image 27″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”65px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”12. Conduction through dense lintels” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”]<\/p>\n On the left, a dense concrete lintel is visible as a blue block across the top of the window in a 1960s cavity wall.<\/span><\/p>\n On the right,\u00a0 DL-321 shows how EWI can mask any poor original wall components. Here the windows are moved out into the insulation zone forming a continuous line outside the original masonry, wrapping the old lintel in the process. <\/span><\/p>\n <\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/28-241013151058.jpg” alt=”24 250106111002″ title_text=”28 241013151058″ align=”center” admin_label=”Image 28″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/29-DL321.jpg” alt=”29 DL321″ title_text=”29 DL321″ align=”center” admin_label=”Image 29″ _builder_version=”4.27.4″ _module_preset=”default” width=”80%” custom_padding=”||||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#00C4CC” divider_weight=”5px” _builder_version=”4.27.4″ _module_preset=”default” width=”70%” module_alignment=”left” custom_padding=”50px||50px||false|false” global_colors_info=”{}”][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ admin_label=”Lead magnet form” _builder_version=”4.21.0″ _module_preset=”default” module_alignment=”center” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Download the Guide” _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_code _builder_version=”4.16″ _module_preset=”default” border_radii=”on|10px|10px|10px|10px” border_color_all=”#00C4CC” global_colors_info=”{}”]<\/p>\n [\/et_pb_code][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/47-The-Use-and-Benefits-of-Thermographic-Imaging.jpg” alt=”47 The Use and Benefits of Thermographic Imaging” title_text=”47 The Use and Benefits of Thermographic Imaging” align=”center” _builder_version=”4.27.4″ _module_preset=”default” width=”50%” box_shadow_style=”preset1″ box_shadow_blur=”10px” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#00C4CC” divider_weight=”5px” _builder_version=”4.27.4″ _module_preset=”default” width=”70%” module_alignment=”right” custom_padding=”50px||||false|false” global_colors_info=”{}”][\/et_pb_divider][et_pb_text admin_label=”Download the Details” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”]<\/p>\n Check out the Detail Library for hundreds of details you can download to use in your own projects!<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/02\/FAQs-Detail-Banner.png” alt=”FAQs Detail Banner” title_text=”FAQs Detail Banner” admin_label=”Detail Banner” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_button button_url=”https:\/\/detail-library.co.uk\/details\/” url_new_window=”on” button_text=”BROWSE THE LIBRARY” button_alignment=”center” admin_label=”Download Button” _builder_version=”4.27.4″ _module_preset=”default” custom_button=”on” button_text_size=”17px” button_text_color=”#FFFFFF” button_bg_use_color_gradient=”on” button_bg_color_gradient_stops=”#00c4cc 0%|#7c2ae8 100%” button_border_width=”0px” button_border_radius=”8px” button_font=”|700|||||||” background_layout=”dark” custom_padding=”10px||10px||false|false” global_colors_info=”{}”][\/et_pb_button][et_pb_text admin_label=”Related Reading” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”75px||||false|false” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||100px||false|false” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/10\/Appetite-for-Disruption-Tech-Guide.jpg” alt=”Fabric Upgrades and Heat Pumps \u2013 Finding the Sweet Spot” title_text=”Appetite for Disruption Tech Guide” url=”https:\/\/detail-library.co.uk\/appetite-for-disruption\/” url_new_window=”on” align=”center” _builder_version=”4.27.4″ _module_preset=”default” width=”90%” box_shadow_style=”preset1″ global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/05\/Fabric-Upgrades-and-Heat-Pumps-\u2013-Finding-the-Sweet-Spot.jpg” alt=”Fabric Upgrades and Heat Pumps \u2013 Finding the Sweet Spot” title_text=”Fabric Upgrades and Heat Pumps \u2013 Finding the Sweet Spot” url=”https:\/\/detail-library.co.uk\/fabric-upgrades-and-heat-pumps-finding-the-sweet-spot\/” url_new_window=”on” align=”center” _builder_version=”4.27.4″ _module_preset=”default” width=”90%” box_shadow_style=”preset1″ 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global_module=”276036″ saved_tabs=”all” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/detail-library.co.uk\/wp-content\/uploads\/2025\/01\/Alex-Bell-Authors-Profile-Image.png” alt=”Alex Bell Author’s Profile Image” title_text=”Alex Bell Author’s Profile Image” align=”center” _builder_version=”4.27.4″ _module_preset=”default” width=”100%” max_width=”50%” custom_padding=”20px||||false|false” border_radii=”on|100%|100%|100%|100%” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”2_3″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Author” icon_placement=”left” image_icon_width=”99%” content_max_width=”1100px” admin_label=”Author bio” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h2″ width=”100%” max_width=”100%” module_alignment=”left” custom_padding=”|75px|||false|false” image_max_width=”99%” global_colors_info=”{}”]<\/p>\n Written by Alex Bell, Retrofit Architect, Retrofit Coordinator and Passivhaus Designer with 25 years\u2019 experience of design and construction. Alex practises low energy, sustainable design using the Passivhaus principles, EnerPHit or the PAS 2035 Retrofit approach.<\/p>\n [\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Image Credits” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”50px||||false|false” global_colors_info=”{}”]<\/p>\nInfrared Thermography<\/h2>\n
Back to School<\/h2>\n
Thermal Bridges<\/h2>\n
IR Thermography for Diagnostics<\/h2>\n
The Cameras<\/h2>\n
Understanding the Images<\/h2>\n
1. Poorly insulated cavity wall construction<\/h3>\n
2. Heat loss around windows lacking a cavity closer<\/h3>\n
3. A solid door threshold spanning inside to outside<\/h3>\n
4. Recessed lights in a flat ceiling<\/h3>\n
5. Uninsulated flat roof<\/h3>\n
6. Uninsulated dropped eaves<\/h3>\n
7. Draughts through a suspended timber floor<\/h3>\n
8. Heat through solid ground floors<\/h3>\n
9. Air leakage around sash windows<\/h3>\n
10. \u00a0 Bay window lid<\/h3>\n
11. Loft conversion alcove<\/h3>\n
12. Conduction through dense lintels<\/h3>\n
Download the Guide<\/h2>\n
Download the Details<\/h2>\n
Related Reading<\/h2>\n
Image Credits<\/h3>\n